Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:29 2012

Optimize a model with 1 rows, 59 columns and 59 nonzeros
Model has 96 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 97 rows, 154 columns, 346 nonzeros
Variable types: 0 continuous, 154 integer (153 binary)
Found heuristic solution: objective 35.0000000

Root relaxation: objective 0.000000e+00, 118 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    0.00000    0   28   35.00000    0.00000   100%     -    0s
H    0     0                      27.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   29   27.00000    0.00000   100%     -    0s
H    0     0                      21.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   27   21.00000    0.00000   100%     -    0s
H    0     0                      20.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   27   20.00000    0.00000   100%     -    0s
     0     0    0.00000    0   30   20.00000    0.00000   100%     -    0s
     0     0    0.00000    0   26   20.00000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
H    0     0                      17.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   24   17.00000    0.00000   100%     -    0s
H  211   121                      16.0000000    0.00000   100%   6.7    0s
H  221   102                      13.0000000    0.00000   100%   7.3    0s
H  303    95                      12.0000000    0.00000   100%   9.1    0s

Cutting planes:
  Cover: 180

Explored 457 nodes (8202 simplex iterations) in 0.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%